Global Wireless Infrastructure Provider | American Tower

Board of Directors | American Tower

Diversity, Equity and Inclusion | American Tower

What We Do | American Tower

404/403 Error | American Tower

American Tower Chile | Líder Global en Infraestructuras Digitales

When specifying accessible names via `aria-labelledby`, ensure that the 
label elements exist.

## Explanation

Accessible names are required for many parts of a page, including form controls.
One way to accomplish this is to use `aria-labelledby` to specify the ID or IDs of 
other elements which contain a label. For example:

```html
<h2 id="dialog-labell">Important message!</h2>
<dialog aria-labelledby="dialog-label">
```

In this example, the `aria-labelledby` for the `<dialog>` points to an ID of `dialog-label`,
which doesn't exist. The heading it refers to instead has an ID of `dialog-labell`, presumably 
a typo.

## Why this matters

It isn't usually clear when an accessible name is broken, even during user testing.

This check helps to identify where an element clearly intended to have a label, but
that label is missing.

When a label is broken, it may be impossible for a user of assistive technologies
to understand what that element does.

missing-aria-labelled-by

August 2025

July 2025

American Tower Corp.

Title / URL	Issues
Global Wireless Infrastructure Provider \| American Towerwww.americantower.com/es-es/	1
Global Wireless Infrastructure Provider \| American Towerwww.americantower.com/en-ke/	1
Board of Directors \| American Towerwww.americantower.com/board	1
Diversity, Equity and Inclusion \| American Towerwww.americantower.com/dei	1
Global Wireless Infrastructure Provider \| American Towerwww.americantower.com/	1
What We Do \| American Towerwww.americantower.com/what	1
404/403 Error \| American Towerwww.americantower.com/invented-url-for-404-page	1
Global Wireless Infrastructure Provider \| American Towerwww.americantower.com/en-za/	1
American Tower Chile \| Líder Global en Infraestructuras Digitaleswww.americantower.com/es-cl/	1
Global Wireless Infrastructure Provider \| American Towerwww.americantower.com/en-gh/	1

Fix missing ARIA label IDs

American Tower Corp.

Where this issue has occurred